ML and OZ shown in product´s page

[idor]

Hello VM team,

as the title says I need to show the ML / OZ in the product page.

Now I have ML selected. In example 200ml
What I need is to show

Capacity 200 ml / 6.8 fl. oz.

PS.
I use VM 3.6.10
and Joomla 3.9.14

Any help?
Thank you!

[GJC Web Design]

make a custom field text -- fillin the values and display it